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Chapter 17 Name Date Class 9 The model below allows scientists to compare DNA sequences from two species to estimate how long it has been since they diverged from a common ancestor. What is the name of this model A molecular clock B cladogram C pedigree D family tree bk Members of which kingdom secrete enzymes into their food and then absorb the digested matter directly into their cells A Protista B Fungi C Plantae D Animalia bl As scientists began to learn more about geologic time, they incorporated their findings into systems of classification. What is the system that takes into account an organism’s evolutionary history A binomial nomenclature B phylogeny C taxonomy D historical classification bm What is the system by which each species is given a two-part scientific name A phylogenetics B cladistics C taxonomy D binomial nomenclature bn Which would be the least reliable evidence in determining whether or not two animals share a taxonomic relationship A physical structures and appearance B appearance of their chromosomes C diet and nutrition D DNA sequences bo Which is a cluster of organisms distinct from other clusters that shows evidence of a pattern of ancestry and descent A kingdom B division C phylum D species bp What statement describes the thinking of scientists before Darwin presented his theory of evolution A All species that ever lived were still alive. B All species were separate and unchanging. C Species could be distinguished by their DNA. D Species could be distinguished by their color patterns. Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. 34 CHAPTER 17 STANDARDIZED TEST PRACTICE
Chapter 18 Name Date Class 1 What is the outer coat of proteins called that surrounds the core of a virus A capsule B envelope C membrane D capsid 2 What is characteristic of the object shown below Spike Genetic material 5 Which bacterial adaptations helps a bacterium avoid being engulfed by white blood cells A capsule B cell wall C pili D flagella 6 What does a virus need to replicate A capsid, tail, and spikes B DNA only C set of prions D host cell Envelope Capsid A It is classified by its nucleic acid. B It can replicate on its own. C It has organelles and makes proteins. D It is classified as a cell. 7 How do humans benefit from the presence of a certain strain of E. coli in their intestines A The E. coli makes Vitamin K. B Humans provide oxygen for the bacteria to live. C The E. coli produces antibiotics in humans. D Humans derive no benefit from any strain of E. coli. Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. Use the following illustration to answer questions 3 and 4. 3 In the bacterial cell shown above, what is the structure labeled A A ribosome B plasmid C chromosome D pili 4 How do the structures labeled B help increase the diversity of prokaryotes and contribute to resistance to antibiotics A They help the bacterium move. B They attach to other bacteria cells to exchange genetic material. C They help the cell attach to surfaces. D They keep the cell from drying out. 8 Identify the process that is taking place in the illustration below. Cell wall Plasma membrane Chromosome A endospore formation B conjugation C chemosynthesis D binary fission Cytoplasm STANDARDIZED TEST PRACTICE CHAPTER 18 35
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Page 5 and 6: National Science Content Standards
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